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• .. (вверх)
• [DIR] ..
• [FILE] index.ts
• [FILE] input.ts
• [FILE] output.ts

Просмотр файла: input.ts

// <scriptSig> {serialized scriptPubKey script}

import { script as bscript } from '../../';
import * as p2ms from '../multisig';
import * as p2pk from '../pubkey';
import * as p2pkh from '../pubkeyhash';
import * as p2wpkho from '../witnesspubkeyhash/output';
import * as p2wsho from '../witnessscripthash/output';

export function check(script: Buffer | Array<number | Buffer>, allowIncomplete?: boolean): boolean {
  const chunks = bscript.decompile(script)!;
  if (chunks.length < 1) return false;

  const lastChunk = chunks[chunks.length - 1];
  if (!Buffer.isBuffer(lastChunk)) return false;

  const scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1)))!;
  const redeemScriptChunks = bscript.decompile(lastChunk);

  // is redeemScript a valid script?
  if (!redeemScriptChunks) return false;

  // is redeemScriptSig push only?
  if (!bscript.isPushOnly(scriptSigChunks)) return false;

  // is witness?
  if (chunks.length === 1) {
    return p2wsho.check(redeemScriptChunks) || p2wpkho.check(redeemScriptChunks);
  }

  // match types
  if (p2pkh.input.check(scriptSigChunks) && p2pkh.output.check(redeemScriptChunks)) return true;

  if (p2ms.input.check(scriptSigChunks, allowIncomplete) && p2ms.output.check(redeemScriptChunks)) return true;

  if (p2pk.input.check(scriptSigChunks) && p2pk.output.check(redeemScriptChunks)) return true;

  return false;
}
check.toJSON = (): string => {
  return 'scriptHash input';
};

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